The FDD3682 is a N-channel MOSFET manufactured by Fairchild Semiconductor. It has a maximum voltage of 100V, a maximum current of 32A and a typical on-resistance of 36mΩ. The product uses PowerTrench technology and features low Miller charge and low QRR body diode characteristics. It is qualified to AEC Q101 and is suitable for applications such as DC/DC converters and off-line UPS, distributed power architectures and VRMs, primary switches for 24V and 48V systems, high voltage synchronous rectifiers, direct injection/diesel injection systems, 42V automotive load control and electronic valve train systems.
This document is a datasheet for the Fairchild Semiconductor FDD3682, an N-Channel PowerTrench MOSFET designed for high voltage synchronous rectification and primary switching in DC/DC converters and automotive systems. The device features a low on-resistance of 36mΩ (typical) and is qualified to AEC Q101 for automotive applications.
The datasheet provides comprehensive electrical characteristics, including maximum ratings, off and on characteristics, dynamic parameters, and thermal data. It includes typical performance curves for power dissipation, current capability, capacitance, and switching times, along with test circuit diagrams and equations for calculating thermal resistance based on mounting pad area.
| Drain to Source Voltage | 100 V |
|---|---|
| Continuous Drain Current (25°C) | 32 A |
| On Resistance (Typical) | 36 mΩ |
| Package Type | TO-252AA |
| Operating Temperature Range | -55 to 175 °C |
| Total Gate Charge | 18.5 nC |
The maximum power dissipation is 95 W at a case temperature of 25°C.